Krone’s biggest big baler
Big Pack 4x4 HighSpeed featuring forager technology

Spelle, 21 September 2011. Krone releases its new Big Pack 4x4 HighSpeed model, which is able to bale up to 70-80 tonnes of straw into 1.20m x 1.30m bales within one hour. The baler features a pick-up that was taken over from our Big X forage harvester – a design that moves the pick-up closer to the packer to provide a smoother flow of crop to the packer. In addition, the roller crop guard is top hinged to the direct drive feed roller – a design that leaves the pick-up open on either end so it can always pick up the crop thoroughly, even in extremely wide swaths.

The new Big Pack 4x4 HighSpeed model delivers a 20 percent higher throughput than the existing 4x4 version and features an upgraded Variable Feed System (VFS). The system comprises four packers and one feeder and operates in five stages to feed the material into the pre-chamber where it is compressed before it enters the actual baling chamber: When the pre-chamber is filled with material, a haydog gives way to the pressure and clears the way for the material to enter the baling chamber. At the same time, it triggers the new and cam-controlled swing, which is actively pushed out of the VFS chamber, a system that warrants uniform densities even when operating in small and narrow swaths.

Offering ISOBUS and LoadSensing compatibility, Big Pack 4x4 HighSpeed responds the needs of contractors and large-scale farmers, who can also specify the machine with 60km/hr axles and tyres. Users confirmed that Big Pack 4x4 HighSpeed delivers throughputs of up to 70-80t/h at maintained densities.